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c, CHAIN REPLACEMENT
1) Use onlythe Low4(Jck Chainspecifled
for your sawin "Specifications," for
replacement chain.
2) Replace the chain when cutters or
links break.
3). See-your Seare..Service Center to
replaceand sharpen indlviduai cutters
for matching your chain.
4) Always have a worn sprocket/gear
assembly replaced by your Sears
Service Center when installing a new
chain to avoid excessive wear to the
Chain,
2. GUIDE BARMAINTENANCE
• Cor)dltions which can require guide bar
rnatnter_nce:
-- saw cuts toone side
saw hasto be forcedthrough a cut
-- inadequateSupplyofoiltobarand chain.
• Check tim condition of the guide bar each
time thechair)issharpened. Awomguidebar
willdamage thechainand make cuttingmore
difficult.
• Repiacethe guide bar when:
the insidegrooveofthe gu'_e bar railsis
•worn.
-- the guide bar is bent or cracked,
Use only the Reduced-Ktcld0ack Guide
Bar specified foryoursawin "Specifi-
cations," for replacement,
a, Remove theguide bar to seryice,
b,. Clean oil holes at least once for each five
•hoursof operation,
c, Removesawdustfromtheguidebargroove
pedodicailywithaputtyknlleorawire, Figure
37.
d. Remove burrs by filing the sideedges ofthe
.guide bar-grooves square with a flat file.
Figure38,
e. Restoresquare edges io an uneven rail top
by filing w_h.afiat file. Figure 38,
REMOVE SAWDUST
FROM GUIDE BAR GROOVE
Figure37
•C. sPROOKETIGEARASSEMBLY
Cl_aft lhe sprocket and surrouriding area daily "
during heavy use ofthe saw.
.,inspect the sprocket regularly for wear. A worn
sprocket willcause thechaintorun erraticallyand
• wiltshortenthe life ofthebar andchain. Figure 39.
= Ifsprocket Is worn(Figure 39),.havethesproel0et.
replaced by your Sears Service Center. User
. Sprocketreptacementcan causethedoubleir)sula- "
•tion SYstemtobecome ineffective.
CORRECT
GUIDE BAR
GROOVE
WORN GROOVES
FILE EDGES
SQUARE
T Hill
WEAR IS
V4SIBLE
...... i¥,,,,, , i i';;";";';;;.........
......................................CHAIN WEAR ON
DRIVE SPROCKET
r
17
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